<template>
    <div>
        <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
        <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
  <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
    </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'lodash'

export default {
    data() {
        return {
            // 需要合并对象实例
            options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
        };
    },
    created() {

    },
    async mounted() {
        // 基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));

        // 获取数据
        const {data:res} = await this.$axios.get('reports/type/1')
        

      // 指定图表的配置项和数据
        const result = _.merge(res.data,this.options)

       // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(result);
    },
    methods: {

    }
};
</script>

<style scoped >

</style>
